What was said: Oh, what a handsome bride and groom. I can see them being married forever!
What they really meant: That is if it were me getting married to that bride/groom. Those two? I wouldn't be surprised if they divorced within the month.

What could be meant: Where did you find a face for that nose? The last time I saw eyes like that was in the pens of a stockyard. Oh and would you mind moving your friend out of the way, I can't see the elephant behind you.

What was said: "Oh, you're wearing that dress tonight?"
What Was meant: "Did you lose your fashion sense or something. Because that dress is... It's making me want to puke. Get it away! I don't want to see it every again!"